12440323025 has 24 divisors (see below), whose sum is σ = 16660641984. Its totient is φ = 9160142400.

The previous prime is 12440322989. The next prime is 12440323057. The reversal of 12440323025 is 52032304421.

It is not a de Polignac number, because 12440323025 - 2²² = 12436128721 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12440322985 and 12440323003.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57620 + ... + 167930.

It is an arithmetic number, because the mean of its divisors is an integer number (694193416).

Almost surely, 2^12440323025 is an apocalyptic number.

It is an amenable number.

12440323025 is a deficient number, since it is larger than the sum of its proper divisors (4220318959).

12440323025 is a wasteful number, since it uses less digits than its factorization.

12440323025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110681 (or 110676 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

Adding to 12440323025 its reverse (52032304421), we get a palindrome (64472627446).

The spelling of 12440323025 in words is "twelve billion, four hundred forty million, three hundred twenty-three thousand, twenty-five".